The Wiha Industrial Heavy-duty Diagonal Cutters come with a switchable opening spring for more power in every cut. DynamicJoint® ensures hand force is optimally applied when cutting, providing up to 40% greater cutting force. These precise pliers have a semicircular head shape enabling a clean cutting edge. Suitable for cutting soft to extremely hard wires and cables. Ergonomically shaped plier handles ensures comfortable, fatigue-proof work.